A method of treatment for head pain.
D004155:Diphenhydramine / Q000008:administration & dosage*; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D007263:Infusions, Parenteral; D008722:Methods; D011343:Procaine / Q000008:administration & dosage*
D011343:Procaine; D004155:Diphenhydramine